This list is intended to be as comprehensive as possible for the Grubbs'
larger telescopes. The reference lists are representative rather than
complete. VTM denotes
Glass, I.S., 1997. Victorian Telescope Makers, The Lives and Letters of
Thomas and Howard Grubb, Institute of Physics Publishing, Bristol and
Philadelphia.

48 - in reflector, Melbourne, Australia, 1869.
A reconstruction of the telescope using some of the original parts and a
new glass mirror was used for the very successful MACHO project from the late
20th century onwards. Unfortunately it was destroyed in
the Mt Stromlo fire of 2003. However, the heavy original parts were not much
damaged and a project is now under way in Melbourne to reconstruct the
instrument in its original form.
References:
VTM, pp39-61.
Robinson, T.R., Grubb, T., 1870. Phil. Trans. Roy. Soc., 159,
127.
Website of the Great Melbourne Telescope, including the Phoenix
newsletter.

28 - in refr, Greenwich, England, 1893Commissioned in 1991. On old mounting designed by Airy. Lens convertible
for photography. Moved to Herstmonceux in 1957 and back to Greenwich in 1971.
Reference:
Observatory, 16, 401, 1893.
Web article
National Maritime Museum, Greenwich

27 - in refr, Vienna, Austria, 1878
For a time, world's largest refractor. With 45-ft dome and 3
others of 27 ft.
References:
VTM pp81-94
Engineering, 29, 114, 1880. (Start of a series)

20 - in refl, Glasgow, Scotland, ca. 1851
Perhaps only the speculum-metal mirror was made by Thomas Grubb,
although Howard Grubb in his correspondence showed that he believed
the whole instrument to be due to his father. Still in use, 1912.
Reference:
Mon. Not. R. Astr. Soc., 72, 278, 1912.

18 - in refl / 15 - in refr Tulse Hill (Huggins's
Observatory) England, 1870Property of Royal Society, loaned to Huggins. Originally the
telescopes were interchangeable; they were placed on the same mount in 1882.
With drum-type roof. Given by Royal Society to Cambridge University
Observatory in 1909. In Cambridge until 1954
References:
King, H.C., 1955. The History of the Telescope}, Charles
Griffin and Co., High WycombeStratton, F.J.M., 1949. Ann. Sol. Phys. Obsy., Cambridge.
1.

17 - in refl / 8 - in refr, Manchester Exhibition, ca 1887
Possibly made up only for the exhibition. Reflector could be that
of the 16 1/2 - inch Poona telescope mentioned below.
Reference:
Engineering, 44, 630, 1887.

15 - in refl, Dunsink, Ireland (Roberts) 1888Originally a With mirror on a mounting by Cooke (probably the original
mount of Roberts's 7 -in Cooke refractor which became the guide telescope of
his 20 - in photographic reflector), this telescope was renovated by Grubb
for presentation to Trinity College Dublin (Dunsink Observatory) in 1888.
Later it was remounted by Grubb. Mounting later carried a 28-inch
reflector.
Reference:
Wayman, P.A., Dunsink Observatory 1785-1985, 1987.
Dubl. Inst. Adv. Stud. and Roy. Dubl. Soc.

15 - in refr, Dunn's Observatory, Maidenhead, EnglandThere was a f/12 visual refr. of 1893 and a photographic one of 1894.
The latter telescope is the ``portrait lens" of 15 inches aperture and
89 inches focal length referred to in Observatory (1897). Grubb also
supplied a hand-operated rising floor. Later at Wilfrid Hall's observatory
in Hepple Woodside, Northumberland. A photograph exists in the album
``Miscellaneous Telescopes", Tyne and Wear Archives (Grubb-Parsons
collection). Now known as the Wilfrid Hall telescope and located at the
Alston Observatory of the University of Central Lancashire. Owned by the
Royal Astronomical Society.
References:
Observatory, 20, 155, 1897.
Grubb-Parsons Publ. No. 1, p45, 1926.
Mentioned in Grubb-Gill correspondence.
Further information supplied by Prof G. Brommage, Univ. Central
Lancs.

13 - in photogr. refr, (Astrographic) Royal Obsy, Cape,
South Africa, 1891With dome. No longer possesses original drive clock.
Reference
Gill, D., 1913. A History and Description of the Royal
Observatory, Cape of Good Hope, London, H.M.S.O.

12-in refl, Melbourne, 1870Parts and a mount for a 12-inch speculum-metal reflector were sent
to Melbourne so that local astronomers could practice polishing techniques
for the 48-in reflector (see chap. 2). History uncertain, but at least
mirror may still exist (Orchiston, 1990, private communication).

9 - in refr, Aldershot Observatory, Farnham, Surrey 1891The telescope and dome were bought by Patrick Young Alexander (1867-1943)
and donated by him to "The Army Corps" in 1906.
Information from http://www.farnham-as.co.uk/aldershotobservatory.htm. See
also the Wikipedia article on Aldershot Observatory.

9 - in refr Transvaal, South Africa, (later Union, later still
Republic) Observatory 1907On Grubb mount of 1879 [originally for a Repsold heliometer]
donated by Sir David Gill. Lens re-worked, 1908.
References:
Hers, J., 1987. Mon. Notes Astr. Soc. Sthn. Africa, 46,
39.
Innes, R.T.A., Observatory, 71, 315, 1911.
This telescope was used for one of the first parallax determinations of
Proxima Cen, the nearest star, by R.T.A. Innes. For some time in an
observatory atop the UNISA building in Pretoria, South Africa, it is now
(2012) back at the Transvaal/Union/Republic Observatory site.

8 - in; originally a refr with an 8 - inch lens. Birmingham
University 1872 Now carries a 5.5-inch Cooke refractor, possibly a
triplet lens (information from Samuel George; also from Kevin Johnson,
London Science Museum).

8 - in coelostat (Royal Irish Academy), 1900Was made for a joint eclipse expedition of the Royal Dublin
Society and the Royal Irish Academy to Spain in 1900. Later, in 1919,
it was used on the famous eclipse expedition to Sobral, Brazil, when
Dyson, Eddington and Davidson verified Einstein's theory of general
relativity by measuring the deflection of starlight due to the
gravitational field of the sun.
References:
Sci. Trans. Roy. Dubl. Soc., (2nd Ser.) 8, 65, 1904.
Royal Dublin Society Bi-Centenary Celebrations 1931 Official
Handbook.
Dyson, F.W. et al, 1920. Phil. Trans. Roy. Soc., 220,
291.

7 - in Woolwich, England, Royal Artillery Institute, 1872Cost 500 pounds in 1873.
"I came over here [London] to erect an Equatorial for the Artillery
Institute at Woolwich but have come to a complete standstill the pier they
have built being about 25 degrees!!! out of the meridian and the stones
cracked so badly that it would be absolutely dangerous to mount the
instrument on them." (H. Grubb to G.G. Stokes, 21 Aug., 1872. G482, Stokes
Correspondence, Cambridge Univ. Lib.) Went to Bedford College in 1927 and to
Royal Holloway in
1985.
Reference:
Report Brit. Assoc., 1872, p.30.

6 - in refr, Royal Obsy, Cape, South Africa, 1882Originally a ``Transit of Venus" telescope. Mounting replaced in
1886 by another designed for an 8 - in telescope. Lens broken during 1970s
and replaced. Drive electrified, 1980s. Clockwork in SAAO museum.

6 - in Farnham telescope, Co Cavan 1886Was owned by S.H.
Maxwell (1849-1900), later Baron Farnham. Taken by W.G. Duffield to
Australia, where it was installed at Mount Stromlo in 1928. It did not
survive the fire of 18 January 2003 [W. Orchiston, private comm.].
Reference:
The Farnham
refractor.

6 - in refr, Torquay Boys' Grammar School.1895?. 80-in focal length.
Reference:
Early history lost. In use in the post-war period by a person living in
Dartington near Totnes in Devonshire (England). It was later donated to a
Mrs Iris Allison of the Dartington Astronomical Society. It was given to
the Torquay Boys' Grammar School in 1993 and afterwards restored to its
original appearance.
See
also this web page

5 - in refr, Mr and Mrs A. Bourke, BallinaMounted on offset alt-azimuth head with tripod.
Reference:
Illustrated in Mollan, C, Mind and Hand, Instruments of
Science 1685-1932, Catalog of an exhibition held at Trinity College
Dublin in 1995.

3 - in speculum, 6 ft f.l.Used in connection with an attempt to photograph the solar corona from a
mountain site in Switzerland.

References:
Woods, C.R., 1884. Observatory, 7, 376, 1884.

3 - in refr, Kilgrew, Kimberley, South Africa, ca. 1881Ordered by Gill in a letter to Grubb, 12 July 1881.

3 - in (?) Coronagraph, Royal Obsy., Cape, South Africa,
1885Mentioned in Gill-Grubb correspondence.
With a wooden tube and a speculum mirror. Size uncertain.
C.R. Woods was involved in the design. (See 3 - in speculum, above)

Early Thomas Grubb Mount, University College Galway,
resembling Markree mount, on wooden frame with wheels. Currently carrying a 5-in
telescope with airspaced objective. Possibly as early as 1850. May have been
acquired by George Johnson Stoney, who was professor in Galway from ca 1845.
(Information from Prof Michael Redfern, Physics Dept, UCG, 2003)

Untraced and Miscellaneous, Mentioned in Catalogues Etc

Transvaal. Untraced

Sicily

Collurania-Teramo has a Grubb filar micrometer and some sort of
camera which attached to a Cooke telescope.

18 - ft dome and dodecagonal iron observatory, Royal
Obsy., Cape, South Africa, 1886Mentioned in Grubb-Gill correspondence, with drawings etc.
Extant, 1997. Was built for a Repsold heliometer. Has openable sides
to allow air circulation. Now used for a 49cm reflector.

Notes:
Besides telescopes and domes, the Grubbs constructed many other
instruments. Astronomical accessories included chronographs (a means for
noting the precise time at which an event occurred), eyepiece micrometers
(devices for measuring small angular distances such as the separation and
position angle of double stars), spectroscopes, and clocks.

A 6-prism spectrograph made for Huggins is in the Whipple Museum
of the History of Science, Cambridge (Burnett and Morrison-Low, (1989).

A 6-prism spectrograph of a different pattern to the above is in the
National Museum of American History, Smithsonian, Washington. It was used by
C.A. Young at Princeton.

The Royal Dublin Society possesses a 3-prism laboratory
spectroscope.

Miscellaneous instruments,
other than the magnetic equipment
mentioned in Chap. 1 of VTM, included base-line measures for surveying,
microscopes, photographic lenses and a special heavy-duty precision balance
from Thomas Grubb's time, now in the chemistry department of Trinity
College, Dublin. The Museum of the History of Science in Oxford has a Thomas
Grubb microscope.